1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81518f66fcc66e13f27b80841b2e223ac2ed1f4f39dc55ab58f840cec63d89bb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fef241ea-b673-460d-9050-6e79886e7845.json and https://artists.proofprofile.net/proofs/artist/fef241ea-b673-460d-9050-6e79886e7845.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130896257cda59bded72b3c2566809f6cf821bf1cdc4c5429581e97e6ed3eb77. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEWGI2502420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16580af9bfd359f471f519b3b7a832d4a5599773c5ec7f8820a13ce74eb484cd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac50ae14b93c7b30931ee4fc72ca03ee1b30b338fe25c482366d4b7a6b50ed7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40073b720ed6af0aafa1a8131262e42ba88bda8110fe214f7c40162881316a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16580af9bfd359f471f519b3b7a832d4a5599773c5ec7f8820a13ce74eb484cd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937504.
Yeah! Präsentiert die Hollywood Star Clique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40073b720ed6af0aafa1a8131262e42ba88bda8110fe214f7c40162881316a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937502.
Disney 2000s, Vol. 3: Disney Channel Theme Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40073b720ed6af0aafa1a8131262e42ba88bda8110fe214f7c40162881316a5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7be042daf03765c7a6d4fcef3bc2273fed08e6826f1996f884664f0f0c4400. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40073b720ed6af0aafa1a8131262e42ba88bda8110fe214f7c40162881316a5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff0922043f666988ea9cf3431ceb12a09cc7fb25c94de809e3d8e6005bda5ab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b02a1ab7c12f1e19ce0a5da50e5157e09e2089a8f6042ccc241057895c0ff93. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058fca3b03bf7e8902a2d9628676931ad4b0f57bbd3e8abe4bc6c949a3d840de. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937508.
Starstruck (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40073b720ed6af0aafa1a8131262e42ba88bda8110fe214f7c40162881316a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff0922043f666988ea9cf3431ceb12a09cc7fb25c94de809e3d8e6005bda5ab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16580af9bfd359f471f519b3b7a832d4a5599773c5ec7f8820a13ce74eb484cd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7be042daf03765c7a6d4fcef3bc2273fed08e6826f1996f884664f0f0c4400. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b02a1ab7c12f1e19ce0a5da50e5157e09e2089a8f6042ccc241057895c0ff93. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058fca3b03bf7e8902a2d9628676931ad4b0f57bbd3e8abe4bc6c949a3d840de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac50ae14b93c7b30931ee4fc72ca03ee1b30b338fe25c482366d4b7a6b50ed7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD10937509.